Mode-based MIMO antenna channels for diversity, gain and bandwidth

Information channels supported by orthogonal radiation modes in a coupled antenna system are ideal choices to form MIMO signal channels. Due to their orthogonal nature in radiation, it can potentially result in coupling free and correlation free channels regardless of antenna size and spacing. Those channels can be used toward enhancements of diversity, gain and bandwidth for the benefit of the system capacity. This paper provides an overview on the full potential of a coupled antenna system in terms of its mode-based antenna channels.